chert

== English == === Etymology === Unknown. === Pronunciation === (UK) IPA(key): /t͡ʃɜːt/ (US) IPA(key): /t͡ʃɝt/ Rhymes: -ɜː(ɹ)t === Noun === chert (countable and uncountable, plural cherts) (geology, uncountable) Massive, usually dull-colored and opaque, quartzite, hornstone, impure chalcedony, or other flint-like mineral. (countable) A flint-like tool made from chert. ==== Usage notes ==== Generally, in mineralogy and geology, a chert does not have a conchoidal fracture. In North American archeology the term chert occasionally is still used for various siliceous minerals (including flint) that have a conchoidal fracture; this leads to confusion between the terms flint and chert in some archeology texts. ==== Derived terms ==== ==== Translations ==== ==== See also ==== chalcedony flint jasper quartzite silicate === Further reading === David Barthelmy (1997–2026), “Chert”, in Webmineral Mineralogy Database. “chert”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026. === Anagrams === retch, ECtHR, Recht == Old Irish == === Pronunciation === IPA(key): /ˈxʲert̪/ === Adjective === chert lenited form of cert === Noun === chert lenited form of cert